science

Type 381 radar

Type 381 radar is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Type 381 radar rather than just read about it. In short: The Type 381 (NATO reporting name: Rice Screen) is a 3D G-band air search radar developed by the People's Republic of China. It was the first modern air search radar fitted to a People's Liberation Army Navy warship, the Type 053K frigate Yingtan.

Key takeaways

Type 381 radar belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Type 381 radar to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Type 381 radar from memory before moving on to harder problems.

Reference excerpt

The Type 381 (NATO reporting name: Rice Screen) is a 3D G-band air search radar developed by the People's Republic of China. It was the first modern air search radar fitted to a People's Liberation Army Navy warship, the Type 053K frigate Yingtan.

Variants Type 381A (NATO reporting name: Rice Screen) Type 381C (NATO reporting name: Rice Shield)

References

Notes

Sources Sharpe, Richard, ed. (1989). Jane's Fighting Ships 1989-90. Jane's Information Group. ISBN 978-0710608864. Saunders, Stephan, ed. (2004). Jane's Fighting Ships 2004-2005. Jane's Information Group. ISBN 0-7106-2623-1. Saunders, Stephan, ed. (2009). Jane's Fighting Ships 2009-2010. Jane's Information Group. ISBN 978-0-7106-2888-6.

Illustrations

Worked examples

Example 1 — a first encounter with Type 381 radar

Start with the simplest possible case. Write down what Type 381 radar claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Type 381 radar before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Type 381 radar ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Type 381 radar

In research: Type 381 radar appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Type 381 radar in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Type 381 radar is common in secondary-school and first-year university syllabi. It links to neighbouring topics Military radars of China, Sea radars, so understanding it makes those chapters shorter.
In everyday life: Look for Type 381 radar outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Type 381 radar in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Type 381 radar means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Type 381 radar out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Type 381 radar in simple terms?

Why does Type 381 radar matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Type 381 radar?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Type 381 radar.